BitPay didn't even exist in the 2011 bubble. Now they have something like 1,100 merchants onboard.
SatoshiDICE didn't exist even in March of this year. Now there are more than 10K BTC wagered each day. (Remember, just 7,200 BTC are mined each day). Sure, a single player will wager sometimes hundreds of BTC in a day, but this is real demand for coins that didn't exist a year ago. Then add all the other online gaming methods and there's even more places that bitcoins go which were'nt around a year ago.
Add in BitcoinStore.com being price competitive with NewEgg and Amazon, and there should be even more reasons to be optimistic because this not only will prove that a merchant can do good volume of bitcoin sales, it shows that if merchants don't start accepting bitcoins themselves, they are opening the door for competitors to come in and grab market share.
And then the barriers to entry are so much lower. Anyone with a smartphone can figure out Blockchain for Android or iOS. Buying bitcoins is still not a hassle, but the options are continually improving. Look how many traders are listed on LocalBitcoins -- which are not just conversions between bitcoin and fiat but are building local community.
There still aren't many good ways to short bitcoins, so if a rally happens it is probably going to be greater and faster than most are expecting. I could see a lot of panic buying occurring due to the uncertainty from the halving of new coin supply.